Information presentation device

Abstract

To provide an information presentation device that allows for easy implementation of countermeasures against motion sickness.SOLUTION: The information presentation device 10 comprises a control device 17 that controls an output of an output device 12, which is installed on a vehicle 1. The control device 17 stores a total gauge value that indicates a remaining level of a crew member's physical fitness with respect to their susceptibility to motion sickness. The control device 17 calculates a "damage point" score, which indicates a level of damage the crew member experiences due to the motion sickness, every time this occurs, based on an acceleration state of the vehicle 1 and a turning state of the vehicle 1. The control device 17 calculates a current value of a total gauge amount by subtracting a damage point from a previous value of the total gauge amount. The control device 17 controls the output of the output device 12 so that the current value of the total gauge amount is visually displayed on the output device 12.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an information presentation device. [Background technology]

[0002] Conventionally, there are technologies for preventing car sickness in occupants. For example, in Patent Document 1, when sudden deceleration of a vehicle is released, occupants are notified to prepare for rebound acceleration. The rebound acceleration is acceleration that acts in a direction that returns the occupant's posture from a forward-leaning posture to a seated posture. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-11594 Summary of the Invention [Problem to be solved by the invention]

[0004] Motion sickness varies from person to person. For this reason, it is difficult to provide a motion sickness countermeasure that is tailored to each passenger. Therefore, there is a need for an easy-to-implement motion sickness countermeasure. [Means for solving the problem]

[0005] An information presentation device that can solve the above problem includes a control device configured to control the output of an output device mounted on a vehicle, the control device storing a gauge total indicating the remaining physical strength of an occupant against motion sickness. The control device is configured to execute the following processes: a process of calculating a damage point, which is a score indicating damage suffered by the occupant due to motion sickness, each time based on the acceleration state and turning state of the vehicle; a process of calculating a current value of the gauge total by subtracting the damage point from the previous value of the gauge total; and a process of controlling the output of the output device so that the current value of the gauge total is visually displayed on the output device.

[0006] According to this configuration, the occupant can visually recognize the damage caused by the occupant's motion sickness via the output device, and therefore the occupant can easily take measures to prevent motion sickness. [Effects of the Invention]

[0007] According to the information presentation device of the present invention, passengers can easily take measures to prevent motion sickness. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a block diagram of an embodiment of an information presentation device. [Figure 2] 10(a), (b), and (c) are bar graphs showing changes in the total gauge amount according to one embodiment. [Figure 3] FIG. 2 is a front view showing an example of a screen display of the mobile terminal according to the embodiment; DETAILED DESCRIPTION OF THE INVENTION

[0009] An embodiment of the information presentation device will be described below. As shown in FIG. 1, the information presentation device 10 is mounted on a vehicle 1. The vehicle 1 is a type of vehicle. The information presentation device 10 is a device that presents various information to an occupant of the vehicle 1. The information includes, for example, the degree of motion sickness. When an occupant of the vehicle 1 is repeatedly subjected to acceleration above a certain level, damage due to motion sickness accumulates in the occupant, and when the damage exceeds a certain amount, symptoms of motion sickness occur. Focusing on this point, the information presentation device 10 visualizes the degree of motion sickness of the occupant and presents it to the occupant.

[0010] The information presentation device 10 includes an input device 11 , an output device 12 , an acceleration sensor 13 , a camera 14 , a communication device 15 , a storage device 16 , and a control device 17 . The input device 11 is a device for performing various input operations. The input device 11 includes, for example, buttons and a touch panel. The output device 12 is a device for outputting various information. The output device includes, for example, a display for displaying information. The acceleration sensor 13 detects the acceleration of the vehicle 1. The acceleration includes acceleration in each of the forward / backward, left / right, and up / down directions of the vehicle 1. The camera 14 is capable of photographing the occupants of the vehicle 1.

[0011] The communication device 15 performs wireless communication with, for example, a mobile terminal 20 carried by an occupant of the vehicle 1. The mobile terminal 20 is, for example, a smartphone, which is a high-function mobile phone, or a tablet terminal, and has various communication functions. By installing dedicated applications on the mobile terminal 20, it is possible to add various functions to the mobile terminal 20. The functions include a function to receive various information generated by the control device 17 and display the received information on the display of the mobile terminal 20. The display is one of the output devices of the mobile terminal 20. The functions also include a function to input various information via an input device of the mobile terminal 20 and transmit the input information to the vehicle. The input device includes, for example, a touch panel. The mobile terminal 20 also has a camera and the like.

[0012] Communication device 15 is capable of transmitting and receiving wireless signals to and from mobile terminal 20 using a wireless communication network such as a mobile phone network. Communication device 15 is connectable to mobile terminal 20 via a wireless personal area network (PAN) using Bluetooth (registered trademark) or the like. Communication device 15 is connectable to cloud server 21 via a communication network such as the Internet. A cloud server is a server that is intended to be used via a communication network such as the Internet, and is installed in a cloud environment.

[0013] The communication device 15 has a GPS (Global Positioning System) receiver. The GPS receiver receives positioning signals from GPS satellites and detects the position and direction of the vehicle based on the received positioning signals. The position includes latitude and longitude.

[0014] The storage device 16 is a device that stores various types of information. The information includes, for example, map data. The map data includes, for example, background data, house shape data, annotation data, and road network data. The background data is data that represents the shapes of roads, railways, water systems, residential areas, and forests. The house shape data is data that represents the outlines of buildings such as houses. The annotation data is text information that indicates various names. The road network data is a digital representation of road connections. The map data may be, for example, map data for a car navigation system.

[0015] The control device 17 has a processing circuit including any one of the following three components A1, A2, and A3. A1. One or more processors that operate according to a computer program, which is software. The processor includes a CPU (Central Processing Unit) and memory.

[0016] A2. One or more dedicated hardware circuits, such as an application specific integrated circuit (ASIC), that perform at least some of the processing. The ASIC includes a CPU and memory.

[0017] A3. A hardware circuit that combines configurations A1 and A2. The memory is a computer-readable medium that stores a program that describes processes or instructions for the computer. In this embodiment, the computer is a CPU. The memory includes RAM (Random Access Memory) and ROM (Read Only Memory). The CPU executes various controls by executing the programs stored in the memory at a predetermined calculation cycle. The programs include, for example, an information presentation program. The information includes information indicating the degree of motion sickness of the vehicle occupants.

[0018] <Information presentation processing> Next, the information presentation process will be described. The control device 17 executes the information presentation process at a predetermined calculation cycle. The control device 17 takes in the acceleration detected by the acceleration sensor 13. The acceleration is a state variable that reflects the acceleration state of the vehicle 1. The control device 17 also takes in map data stored in the storage device, analyzes the taken-in map data, and calculates the turning curvature of the vehicle 1. The control device 17 calculates the damage point P d Calculate the damage points P d is a score indicating the damage suffered by passengers due to motion sickness.

[0019] Damage Points P d is expressed, for example, by the following equation (1): P d =R t N g …(1) However, "R t " is the turning curvature. The turning curvature is a state variable that reflects the turning state of the vehicle 1. "N g " is the number of times acceleration exceeding the acceleration threshold has occurred. The acceleration threshold is set, for example, based on the acceleration of vehicle 1 at which damage due to motion sickness is thought to accumulate in occupants. "·" represents multiplication.

[0020] The control device 17 stores the total gauge value S of the occupant. The total gauge value S indicates the remaining physical strength of the occupant against motion sickness. The control device 17 calculates the damage points P from the previous value of the total gauge value S as shown in the following equation (2). d The current value of the total gauge amount S is calculated by subtracting the value from the right side of equation (2).

[0021] S=SP d …(2) The total gauge amount S decreases each time a passenger receives damage due to motion sickness. The total gauge amount S is reset when the passenger gets in the vehicle. Resetting means returning the value of the total gauge amount S to the default value, which is the initial setting value. Resetting is performed, for example, through operation of the input device 11 or the mobile terminal 20.

[0022] The control device 17, for example, causes the output device 12 and the display of the mobile terminal 20 to display the gauge total amount S. The control device 17 updates the display every time the current value of the gauge total amount S is updated.

[0023] An example of what the display might look like is as follows: As shown in FIG. 2(a), the control device 17 displays a stamina gauge 41 on the display. The stamina gauge 41 is a bar graph-shaped gauge that indicates the occupant's remaining stamina against motion sickness. The remaining stamina is the total gauge amount S. The gauge also indicates the maximum stamina value S of the occupant. max and the motion sickness threshold S th The maximum value S max is set as a default value based on the characteristics of the occupant. The characteristics include, for example, age, gender, and physical condition at the time of riding. The motion sickness determination threshold S th is a criterion for determining whether a passenger is suffering from motion sickness. th is set based on the gauge total amount S that is thought to cause motion sickness in the passenger.

[0024] As shown in Figure 2(a), the total gauge volume S during riding is the maximum value S max After that, as the vehicle travels, the total gauge value S decreases each time a passenger suffers damage due to motion sickness. However, as shown in Figure 2(b), if the total gauge value S falls below the allowable value S p If the threshold S is met, it is highly probable that the passenger is not experiencing motion sickness. p is the maximum value S max Less than the motion sickness threshold S th As shown in Figure 2(c), when the value of the gauge total amount S is greater than the motion sickness judgment threshold value S th If the temperature is below 0°C, it is considered that the passenger is likely to suffer from motion sickness.

[0025] As shown in Fig. 3, when there are multiple occupants, the control device 17 displays a stamina gauge 41 for each occupant on the display. In Fig. 3, for example, the stamina gauges 41 of four occupants A to D are displayed on the display of the mobile terminal 20. The remaining stamina gauges 41 of the three occupants A to C are calculated based on the motion sickness judgment threshold S th , and the remaining amount of the stamina gauge 41 of the remaining occupant D is greater than the motion sickness judgment threshold S th The remaining amount of the stamina gauge 41 is the total gauge amount S. Therefore, it can be seen that there is a high probability that the three occupants A to C are not suffering from motion sickness, and that there is a high probability that the remaining occupant D is suffering from motion sickness.

[0026] Although FIG. 3 shows the mobile terminal 20, the stamina gauge 41 for each occupant is displayed not only on the mobile terminal 20 but also on the display of the output device 12. Therefore, the driver can recognize the damage caused by the motion sickness of the passenger by visually checking the stamina gauge 41 displayed on the display. For example, the driver can determine whether the total gauge value S of the passenger is greater than the motion sickness determination threshold value S thThe passenger can drive while being careful not to let their stamina drop below 40. Also, the passenger can recognize the damage caused by their own motion sickness by visually checking the stamina gauge 41. Therefore, the passenger can take measures to prevent motion sickness according to their own condition.

[0027] <Effects of this embodiment> This embodiment has the following advantages. (1) The control device 17 calculates a damage point P based on the acceleration state and the turning state of the vehicle 1. The damage point P is a score indicating the damage to the occupant caused by motion sickness. d The control device 17 calculates the damage point P from the previous value of the total gauge amount S. d The control device 17 controls the output of the output device 12 so that the current value of the gauge total amount S is visually displayed on the output device 12. This allows the occupant to visually recognize damage caused by motion sickness via the output device 12. This allows the occupant to easily take measures to prevent motion sickness.

[0028] (2) The control device 17 can communicate with a portable terminal 20 carried by an occupant of the vehicle 1. The control device 17 controls the output of the portable terminal 20 so that the current value of the gauge total amount S is visually displayed on the portable terminal 20. This allows the occupant to visually recognize the damage caused by their own motion sickness via the portable terminal 20. This allows the occupant to take measures against motion sickness on their own, depending on their own condition.

[0029] (3) The control device 17 calculates the damage point P from the previous value of the total gauge amount S. d The coefficient K, which is set to absorb individual differences in motion sickness, is added to the value obtained by subtracting p This allows calculation of an appropriate damage point depending on the individual differences in the passengers' motion sickness.

[0030] <Other embodiments> This embodiment may be modified as follows. The control device 17 calculates the damage point P using the following equation (3): d may be calculated.

[0031] P d =R t N g +P i (3) However, "P i " is a damage point calculated based on an image of the occupant. The control device 17 captures image data captured by the in-vehicle camera 14 or the camera of the mobile terminal 20, and analyzes the captured image data. The control device 17 recognizes the state of the occupant through the analysis of the image data. The state includes the facial expression or posture of the occupant. The facial expression includes the direction of the occupant's face and the degree to which the eyes are open. The control device 17 calculates the damage point P i The longer the time, the more damage points P i Damage points P i is the damage point P calculated by the previous formula (1). d In this way, the appropriate damage points P d can be calculated.

[0032] The control device 17 calculates the damage point P using the following equation (4): d may be calculated. P d =R t N g ·K p …(4) However, "K p " is a coefficient specific to each occupant. Coefficient K pis set from the perspective of absorbing individual differences in motion sickness. Individual differences are differences in mental or physical characteristics between individuals. For example, the susceptibility to motion sickness differs depending on the constitution or physical condition of the passenger. Also, children and women are more susceptible to motion sickness than adult men. The damage point P calculated by equation (4) d The value of the damage point P calculated by the previous formula (1) d to the coefficient K p In this way, it is possible to determine an appropriate damage point P according to the individual differences in the passenger's motion sickness. d can be calculated.

[0033] When a passenger develops motion sickness, the passenger inputs the actual occurrence of motion sickness through the input device 11 or the mobile terminal 20. Each time the passenger inputs the actual occurrence of motion sickness, the control device 17 calculates the coefficient K p The adaptation process may be performed by adjusting the coefficient K p The total gauge value S is increased or decreased by the motion sickness threshold S th If the passenger is experiencing motion sickness when the vehicle speed is below 100km / h, the appropriate coefficient K p The control device 17 determines the coefficient K p Similarly, each time a passenger's motion sickness record is entered, the maximum value of the passenger's gauge total S max , and the motion sickness threshold S th may be adapted to the occupant.

[0034] The control device 17 calculates the damage point P using the following equation (5): d The formula (5) can be obtained by combining the formulas (3) and (4) above. P d =R t N g ·K p +P i …(5) In this way, the appropriate damage point P dIn addition, it is possible to calculate the appropriate damage point P according to the individual differences in the passengers' motion sickness. d can be calculated.

[0035] The control device 17 calculates the recovery point P r Calculate the recovery point P r may be added to the total gauge amount S. Recovery points P r is a score indicating the degree of recovery from the damage that the occupant has suffered due to motion sickness. The control device 17 may, for example, set the recovery point P r The driving state is a movement state or behavior of the vehicle 1 that is considered to contribute to the recovery of the occupants from damage. The control device 17 calculates the recovery point P r The longer the time, the higher the recovery point P r becomes larger.

[0036] S=SP d +P r …(6) In this way, the appropriate damage point P d can be calculated.

[0037] The control device 17 may instruct, for example, a car navigation control device to change the route guidance based on the gauge total value S. The instruction may include, for example, an instruction to exclude from route candidates a route with a series of curves or a route with large ups and downs.

[0038] The control device 17 may store various information used in the information presentation process in the cloud server 21. The information may include, for example, acceleration detected by the acceleration sensor 13, turning curvature R of the vehicle 1 calculated based on map data, etc. t , the number of times acceleration exceeding the acceleration threshold occurs N g, and the total gauge amount S. In this way, data collection related to the information presentation process can be performed. In addition, the collected information can be generalized and the generalized information can be shared. The information can include, for example, a combination of road patterns where motion sickness is likely to occur and the driving state of the vehicle 1.

[0039] The control device 17 may have an automatic driving function. As shown in FIG. 1, the vehicle 1 has a driving source 31 for running, a braking device 32, and a steering device 33. The driving source 31 for running is, for example, at least one of an engine and a driving motor. The braking device 32 generates a braking force for slowing down or stopping the running vehicle 1. The steering device 33 steers the steered wheels by moving a steering shaft in the axial direction. The steered wheels are, for example, the left and right wheels. The control device 17 can control the output of the driving source 31 for running. The control device 17 can control the braking force of the vehicle 1 via the braking device 32. The control device 17 can control the steering angle of the vehicle 1 via the steering device 33. The control device 17 can, for example, determine whether the occupant's gauge total S is greater than or equal to the motion sickness determination threshold S. th The driving control of the vehicle 1 may be performed by controlling the output of the driving source 31 for driving, controlling the braking force by the braking device 32, and controlling the steering angle of the vehicle 1 by the steering device 33.

[0040] The control device 17 may be configured to display the gauge total amount S on the display of at least one of the output device 12 and the mobile terminal 20. The stamina gauge 41 may be, for example, a pie chart gauge instead of a bar graph gauge.

[0041] The stamina gauge 41 may be a hardware display device, rather than being realized by software on the display of the output device 12 or the mobile terminal 20. A vehicle is an example of a vehicle. Ships and airplanes are also examples of vehicles.

[0042] The information display device 10 may display, for example, the degree of motion sickness of a non-human animal being transported in the vehicle 1. The animal may be, for example, a racehorse, a dog, or a cat. The person in charge of the animal can recognize the degree of motion sickness of the animal by, for example, visually checking the display of the output device 12 or the mobile terminal 20.

[0043] As used herein, the phrase "at least one of A and B" means "A only, B only, or both A and B." <Additional Notes> Next, the technical ideas that can be understood from the above-described embodiment will be additionally described below.

[0044] [1] A control device (17) configured to control the output of an output device (12) mounted on a vehicle (1) includes a control device that stores a gauge total (S) indicating the remaining physical strength of a passenger against motion sickness, and the control device calculates damage points (P) that are points indicating damage to the passenger caused by motion sickness based on the acceleration state and the turning state of the vehicle. d ) each time, a process of calculating a current value of the gauge total amount by subtracting the damage points from the previous value of the gauge total amount, and a process of controlling the output of the output device so that the current value of the gauge total amount is visually displayed on the output device.

[0045] [2] The information presentation device described in [1] above, wherein the control device is capable of communicating with a portable terminal (20) carried by an occupant of the vehicle and is configured to control the output of the portable terminal so that the current value of the gauge total amount is visually displayed on the portable terminal.

[0046] [3] The control device subtracts the damage points from the previous value of the gauge total amount and adds a coefficient (K p) to calculate the current value of the gauge total amount.

[0047] [4] The control device determines a recovery point (P r ) and calculates the current value of the total gauge amount by subtracting the damage point from the previous value of the total gauge amount and adding the recovery point to the value, wherein the recovery point is a score indicating the degree of recovery from damage suffered by the occupant due to motion sickness.

[0048] [5] The control device may assign additional damage points (P i The information presentation device according to any one of [1] to [4] above is configured to calculate the current value of the gauge total amount by subtracting the damage points from the previous value of the gauge total amount and adding the additional damage points to the value obtained by doing so. [Explanation of symbols]

[0049] 1...Vehicle (vehicle) 10...Information presentation device. 12...Output device 17...Control device

Claims

1. a control device configured to control an output of an output device mounted on a vehicle, the control device storing a gauge total indicating a remaining physical strength of an occupant against motion sickness; The control device a process of calculating a damage point, which is a score indicating damage to a passenger caused by motion sickness, based on an acceleration state and a turning state of the vehicle; a process of calculating a current value of the gauge total amount by subtracting the damage points from a previous value of the gauge total amount; and controlling the output of the output device so that the current value of the gauge total amount is visually displayed on the output device.

2. The information presentation device according to claim 1, wherein the control device is capable of communicating with a portable terminal carried by an occupant of the vehicle and is configured to control the output of the portable terminal so that the current value of the gauge total amount is visually displayed on the portable terminal.

3. The information presentation device according to claim 1 or 2, wherein the control device is configured to calculate the current value of the total gauge amount by multiplying the value obtained by subtracting the damage points from the previous value of the total gauge amount by a coefficient set in consideration of absorbing individual differences in motion sickness.

4. the control device is configured to calculate a recovery point according to a moving state of the vehicle, and to calculate a current value of the total gauge amount by subtracting the damage point from the previous value of the total gauge amount and adding the recovery point to the value; 3. The information display device according to claim 1, wherein the recovery point is a score indicating a degree of recovery from damage sustained by the occupant due to motion sickness.

5. The information presentation device according to claim 1 or claim 2, wherein the control device is configured to calculate additional damage points according to the facial expression or posture of the vehicle occupant, and to calculate the current value of the total gauge amount by subtracting the damage points from the previous value of the total gauge amount and adding the additional damage points to the value.

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